package cn.bugstack.domain.strategy.service.rule.filter.impl;

import cn.bugstack.domain.strategy.model.entity.RuleActionEntity;
import cn.bugstack.domain.strategy.model.entity.RuleMatterEntity;
import cn.bugstack.domain.strategy.model.valobj.RuleLogicCheckTypeVO;
import cn.bugstack.domain.strategy.repository.IStrategyRepository;
import cn.bugstack.domain.strategy.service.annotation.LogicStrategy;
import cn.bugstack.domain.strategy.service.rule.filter.ILogicFilter;
import cn.bugstack.domain.strategy.service.rule.filter.factory.DefaultLogicFactory;
import cn.bugstack.types.common.Constants;
import lombok.extern.slf4j.Slf4j;
import org.springframework.stereotype.Component;

import javax.annotation.Resource;
import java.util.*;

/**
 *【抽奖前规则】根据抽奖权重返回可抽奖范围KEY
 */
@Slf4j
@Component
@LogicStrategy(logicMode = DefaultLogicFactory.LogicModel.RULE_WIGHT)
public class RuleWeightLogicFilter implements ILogicFilter<RuleActionEntity.RaffleBeforeEntity> {
    @Resource
    private IStrategyRepository repository;

    //模拟用户积分
    private Long userScore = 4500L;
    /**
     * 权重规则过滤；
     * 1. 权重规则格式；4000:102,103,104,105 5000:102,103,104,105,106,107 6000:102,103,104,105,106,107,108,109
     * 2. 解析数据格式；判断哪个范围符合用户的特定抽奖范围
     *
     * @param ruleMatterEntity 规则物料实体对象
     * @return 规则过滤结果
     */

    @Override
    public RuleActionEntity<RuleActionEntity.RaffleBeforeEntity> filter(RuleMatterEntity ruleMatterEntity) {
        RuleActionEntity raffleBeforeEntity = new RuleActionEntity();
        String userId = ruleMatterEntity.getUserId();
        Long strategyId = ruleMatterEntity.getStrategyId();
        String ruleValue = repository.queryStrategyRuleValue(ruleMatterEntity.getStrategyId(),ruleMatterEntity.getAwardId(),ruleMatterEntity.getRuleModel());
        //        4000:102,103,104,105 5000:102,103,104,105,106,107 6000:102,103,104,105,106,107,108,109
        Map<Long, String> analyticalValueGroup = getAnalyticalValue(ruleValue);
//        如果没有规则
       if(null == analyticalValueGroup||analyticalValueGroup.isEmpty()){
           return RuleActionEntity.<RuleActionEntity.RaffleBeforeEntity>builder()
                   .code(RuleLogicCheckTypeVO.ALLOW.getCode())
                   .info(RuleLogicCheckTypeVO.ALLOW.getInfo())
                   .build();
       }
//       转换keys值，并默认排序
       List<Long> analyticalSortedKeys = new ArrayList<>(analyticalValueGroup.keySet());
       Collections.sort(analyticalSortedKeys);
//       找到最小符合的值，也就是【4500 积分，能找到 4000:102,103,104,105】、【5000 积分，能找到 5000:102,103,104,105,106,107】
       Long nexValue = analyticalSortedKeys.stream()
               .filter(key->userScore>=key)
               .findFirst()
               .orElse(null);
       if(null != nexValue){
           return RuleActionEntity.<RuleActionEntity.RaffleBeforeEntity>builder()
                   .data(RuleActionEntity.RaffleBeforeEntity.builder()
                           .strategyId(strategyId)
                           .ruleWeightValueKey(analyticalValueGroup.get(nexValue))
                           .build())
                   .ruleModel(DefaultLogicFactory.LogicModel.RULE_WIGHT.getCode())
                   .code(RuleLogicCheckTypeVO.TAKE_OVER.getCode())
                   .info(RuleLogicCheckTypeVO.TAKE_OVER.getInfo())
                   .build();

       }
        return RuleActionEntity.<RuleActionEntity.RaffleBeforeEntity>builder()
                .code(RuleLogicCheckTypeVO.ALLOW.getCode())
                .info(RuleLogicCheckTypeVO.ALLOW.getInfo())
                .build();
    }
    private Map<Long, String> getAnalyticalValue(String ruleValue) {
        String[] ruleValueGroups = ruleValue.split(Constants.SPACE);
        Map<Long, String> ruleValueMap = new HashMap<>();
        for (String ruleValueKey : ruleValueGroups) {
            // 检查输入是否为空
            if (ruleValueKey == null || ruleValueKey.isEmpty()) {
                return ruleValueMap;
            }
            // 分割字符串以获取键和值
            String[] parts = ruleValueKey.split(Constants.COLON);
            if (parts.length != 2) {
                throw new IllegalArgumentException("rule_weight rule_rule invalid input format" + ruleValueKey);
            }
            ruleValueMap.put(Long.parseLong(parts[0]), ruleValueKey);
        }
        return ruleValueMap;
    }


}
